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双折射材料的温度修正 Birefringent Material Temperature Modification .TR9975 3yY}04[9< 目前,FRED尚不支持“global”温度设置,温度敏感性评估一般用脚本编程来完成,该文档演示双折射材料的折射率随温度变化的问题。附件案例文件包括两个双折射材料模,“KDP”和 “KDP Baseline”, KDP Baseline材料存储在已知温度下的折射率,KDP材料用于储存在“current”温度下的折射率值,定义为与baseline material之间的温度差。一个嵌入的脚本名为“modifyBirefringentMaterialIndex” ,包含在FRED文件中,另外也单独附加。其实现过程如下: Lh"<XYY 2*< nu><b 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline {3p4:*} "XKy#[d2 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline YTX,cj#D^& 1k5Who@ 3.Loop over the baseline material samples and determine the number of wavelength entries |vwVghC 5C*Pd
Wpl 4.Loop over each sampled wavelength entry in the baseline material yAs>{6%- YTpSHpf@ a.Modify the ordinary and extraordinary refractive index values using (2) above b#Z{{eLny *@r/5pM2} b.Apply the modified values to the non-baseline material zh`<WN&H }DEg-j,F 5.Set a description on the non-baseline material indicating the temperature change from baseline Xe'x[(l fue(UMF~ 脚本编程及GUI例程请下载链接: C'@i/+ N/'b$m5=
S http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs '&R2 U_ ?|C2*?hZ+ http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd GR.^glG?6 |y#
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